Exemple #1
0
def graph2tree(G, root=0, names=[]):
    # assum G is acyclic
    seed_node = Node()
    seed_node.label = names[root] if names else str(root)
    T = Tree(seed_node=seed_node)
    n = len(G)
    node_refs = [None for i in range(n)]
    node_refs[root] = seed_node
    count = 1
    curr_v = root

    stk = [root]

    while len(stk) > 0:
        curr_v = stk.pop()
        for v, length in G[curr_v]:
            if node_refs[v] is None:
                stk.append(v)
                new_node = Node()
                new_node.label = names[v] if names else str(v)
                node_refs[v] = new_node
                node_refs[curr_v].add_child(new_node)
                new_node.edge_length = length

    for node in T.leaf_node_iter():
        node.taxon = T.taxon_namespace.new_taxon(label=node.label)

    return T
Exemple #2
0
                        phylum] != node.nleaf:
                    #if phylum not in convergence or c.phylCount[phylum] > convergence[phylum][0]:
                    if phylum not in groupings:
                        groupings[phylum] = set([c])
                    else:
                        groupings[phylum].add(c)

#for phylum in global_phylCount:
#     if global_phylCount[phylum] > 1 and not ('Candi' in phylum or 'candi' in phylum):
#         print(phylum + " " + str(global_phylCount[phylum]) + " " + str(purity[phylum][0]) + " " + str(convergence[phylum][0]))
#    print(phylum,global_phylCount[phylum])

#print(global_phylCount['Firmicutes'])
#print(purity['Firmicutes'])

for phylum in groupings:
    if global_phylCount[phylum] < 2:
        continue
    if len(list(groupings[phylum])) == 1:
        ID = None
    else:
        ID = 1
    for c in groupings[phylum]:
        #print(phylum + " " + c.label)
        subTree = Tree(seed_node=c)
        suffix = ("_" + str(ID)) if ID else ''
        for node in subTree.leaf_node_iter():
            print(node.taxon.label + " " + phylum + suffix)
        if ID:
            ID += 1